What are bulldozers? -- Kinds of bulldozers -- Big machines -- Bulldozers at work -- The blade -- Big motor -- Tracks or wheels -- Armored bulldozers -- Staying safe -- Bulldozer facts.
Summary:
Bulldozers are used to push piles of rocks and dirt. The biggest bulldozers are used for mining. Learn more about these machines in Bulldozers, part of the Monster Machines series.
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